10"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 27.75"h] fixed bar + Product Details Outer dimensions:

+ Product Details Outer dimensions: 31

+ Product Details Size – 22"w X 20"h is the size for the duct opening measurement only

+ Product Description Introducing the 8" Radial Damper – Your Solution for Controlled Airflow

actual front end outer dimensions are approximately 22 5/8" width X 16 5/8" height

+ Product Description Enhance your HVAC system's efficiency and your home's aesthetics with our premium aluminum air vent diffuser

10"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 27.75"h] fixed bar + Product Details Outer dimensions:+ Product Details Size 10"w X 26"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 75" Width X 27. 75" Height Weather and Pest Proof These louvers are especially designed to prevent water from entering your home, and with a built in back 1 2" mesh they also protect you from annoying rodents like mice, rats, birds, and squirrels High Quality Aluminum The premium durable aluminum will never rust and it will never